Case for clinical thermometers.



7 G. H. Z-E-AL, CASE FOR GLINIOAL THEBMOMETBRS.

Arrmoumn rum r1113. 9, 1911.

Patented Mar. 5, 1912 FIG. 4-.

FIG. I.

FIG. 6.

FIG.2.

fizverafofl L266 Z6 exams H. zaan; or

LoNnoN, anerlaun.

case roa CLINICAL release.

Specification of Letters Patent.

Patented Mar. 5, 1912.

Application filed February B, 1911. Serial No. 607,480.

To all whom it may concern:

Be it known that I, GILES HENRY ZEAL, a subject of the King of Great Britain, residing at 82 Turnmill street, London, E. (3., England, thermometer manufacturer, have invented certain new and useful Improvements in Cases for Clinical Thermometers, of which the following is a specification.

My invention relates to clinical thermometers and their cases in which a spring or other resilient connection is provided whereby the thermometer may-be swung in to return the mercury speedily to the bulb. ,Hitherto in such devices, the thermometer has been permanently attached to a reversible cap, which is objectionable from hygienic and practicing points of view, and the resilient connection has been so disposed with regard to thethermometer that the latter had to be swung while still attachedto the. end

of the case which served as the handle,

thereby exposing the thermometer to great risk of breakage.

- My invention consists in, providing one end of the case with a resilient continuation or extension, which'may terminate with a thumb screw and-finger piece, so that the thermometer has to be replaced within its case before the swinging motion is imparted to it,

The accompanying drawings illustrate several embodiments of the invention.

Figure 1 is an'elevation of the cap end of a thermometer case fitted with a resilient 5 extension. Fig. 2 is a modification of Fi 1.

Figs, 3, 4, 5, 6 and 7 are examplesof a ternative constructions.

In all the-figuresfa represents the cap ofa thermometer case and b represents there- 0 s'ilient extension, whichwhen in use progepts I, beyond the end of the case. But it. wil be understood that, although the examples show the resilient extension arranged upon the end of the cap, it isalways arranged at'the" 2 5 end of the case whichis opposite to. thatat; which the bulb of the. thermometer i'snermally located.

Referring to Fig. 1, the cap a i videdwith a resilient extens1on.formed-.ja's a J helical spring 0, attached to the cap by theband 0?, which may be 'fi x ed to the cap orv may be arranged to slide thereupon so that ,the spring 0 may telescope uplon the cap.

Preferably, the free end of t e spring 0, which is gripped by the thumb and finger, is provided with a finger piece e formed by acoil or coils of the same wire whichforms part of the spring 0. In the modification shown in Fig. 2, the helical spring 0 is ata 60 -tached to the cap by a single-screw threador helical housing formed by rolling over the top edge of the cap so as to inclose a single coil of the spring as shown at f. By this means, the spring 0 may be extended or telescoped by rotating the same in the corresponding direct-ion.. U In Fig. 3, the resillent extension consists the plate spring 9 and obviate: fracture V 1'';

through undue violence.

of a plate spring'g secured in the endof the The Springs!) w In Fig. 6, the fingerpieee'h is rorinawith a tongue! which is pivotedatm to the cap a, by thesprings a which. are hired mthe cap and impinge against the sides ofthe tongue Fig. 7 shows the. resilient extension .b I

formed of a short length of rubbertube. l

It will be seenthat .tli thqimQmeter is a separate article and'-is-. in no. -way. -permas -neritly; attached structurally; inde endent; of'the thermomete contained in sai ,case, asset forth.

InQteStimony hereof I-have hereunto set ,my hand in presence oftwo subscribing wit- GILES H. ZEAL. Witnesses: Gnome Downme,

WAL'rrr J. SKERTEN.

to the cap orthgpa gq- I silientpermanently "secured extension pro jecting-from; a closed end of-jsa'id case and;

8 the resilient action being provided 

